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Tuning below 950MHz

Tuning below 950MHz

Postby Dave7 » Fri Mar 04, 2016 6:01 pm

Hi,
The STV6120 data says it works from 250-2150MHz. Crazyscan, TBS etc will not allow <950MHz Is there any way to get the TBS6983 to tune below 950MHz?
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Re: Tuning below 950MHz

Postby updatelee » Sat Mar 05, 2016 1:15 am

You can use my open source drivers to do so. TBS could maybe change it to, it's a simple setting

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Re: Tuning below 950MHz

Postby Dave7 » Sun Mar 06, 2016 7:26 pm

updatelee Wrote:You can use my open source drivers to do so. TBS could maybe change it to, it's a simple setting

UDL

Many thanks. I found references to 250MHz in your code when I did a search but I'm a Linux noob. I went through the postings on Rick's forum but ended up a bit confused. Is there and idiots guide? I am using Crazyscan and EBSpro on WinXP & Win 7 but I have Mint 17.2 for the TBS6983 PC or could build a disk for any distro. Do I need Linux 4.1.0-rc3 kernel? If so which distro to you recommend to use as the base?

@TBS - Any chance that you can change the Win drivers? Please?
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Re: Tuning below 950MHz

Postby steven » Mon Mar 07, 2016 10:32 am

Dave7 Wrote:
updatelee Wrote:You can use my open source drivers to do so. TBS could maybe change it to, it's a simple setting

UDL

Many thanks. I found references to 250MHz in your code when I did a search but I'm a Linux noob. I went through the postings on Rick's forum but ended up a bit confused. Is there and idiots guide? I am using Crazyscan and EBSpro on WinXP & Win 7 but I have Mint 17.2 for the TBS6983 PC or could build a disk for any distro. Do I need Linux 4.1.0-rc3 kernel? If so which distro to you recommend to use as the base?

@TBS - Any chance that you can change the Win drivers? Please?

Hi Dave7

As we know that not know the driver but also the tools will check the frequence whether is small than 950M,you can send an email to our support#tbsdtv.com we can discuss how to do it.

Thanks

Kind Regards

steven
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Re: Tuning below 950MHz

Postby Dave7 » Fri Mar 11, 2016 9:43 pm

Thanks to Davin from support. Apparently the driver supports <950MHz:
"Our chip and driver all can support you input the frequency that less than 950MHZ. but i think many software limits the frequency input range(950M~2150M)."
Is there any Windows s/w that allows tuning below 950MHz?
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Re: Tuning below 950MHz

Postby crazycat » Mon Mar 21, 2016 5:52 am

Dave7 Wrote:Hi,
The STV6120 data says it works from 250-2150MHz. Crazyscan, TBS etc will not allow <950MHz Is there any way to get the TBS6983 to tune below 950MHz?


change if freq range in StreamReader.ini (IFStart,IFStop).

Code: Select All Code
IFStart=250
IFStop=2150
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Re: Tuning below 950MHz

Postby Dave7 » Fri Mar 25, 2016 6:10 pm

Crazycat, many thanks and for your software.
This may be obvious but how do the LNBmid and LNBStk parameters work?
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Re: Tuning below 950MHz

Postby crazycat » Sat Mar 26, 2016 5:45 am

specific LOF freq limits for C-band and Ka-band LNB, used for IF Freq calculation:
#define IF_FREQM(X) (((LOF>LNB_MID) && (LOF<LNB_STK)) ? (X-LOF) : (LOF-X))
#define FREQM(X) (((LOF>LNB_MID) && (LOF<LNB_STK)) ? (LOF+X) : (LOF-X))
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Re: Tuning below 950MHz

Postby Dave7 » Sun Mar 27, 2016 6:08 pm

crazycat Wrote:specific LOF freq limits for C-band and Ka-band LNB, used for IF Freq calculation:

Thanks once more
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Re: Tuning below 950MHz

Postby angelsevov » Sun Feb 17, 2019 2:55 am

sorry waking the thread for an old but a great card, tbs6983.
STV6120 can tune up till 2450 .. At very edge it s struggling to get lock.. here is my tbs6983.
over 2450mhz there is nothing (though the driver alows us to go up up up..)

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